It's just a modified version of the cpp example from [td library](https://github.com/tdlib/td/), so I have no idea how to build this, save for replacing the example file and following build instructions there. You'll need [libsimple_support](https://notabug.org/namark/libsimple_support) installed somewhere in the include path or next to td_example.cpp `make install INCDIR=path/to/td/example/cpp`, and compile with c++17 standard.
